Lincoln International 225 manual Set It/See It Pulse Control, AC Auto Balance Controls

A CLOSER LOOK

“Set It/See It” Pulse Control —

Make attractive and consistent welds!

What Is It?

Pulse welding systems vary weld current between peak (high heat) and background current (low heat) levels. Adjusting the pulse frequency controls the level of heat input applied to the weld relative to the weld travel speed. For the Precision TIG® 225, pulse frequency can be varied from 0.1 to 20 pulses per second.

pulsE FrEquEncy:

number of pulses per second

Results

Better control of heat input in the weld, resulting in:

•Reduced warping and burnthrough on thin materials.

•Smaller heat-affected zone.

•Smaller bead profile without compromising proper penetration.

Smaller Heat

Affected Zone

Great For

•Thin materials – Faster pulse settings help to narrow the bead profile and minimize the heat-affected zone and resulting warping or burnthrough.

•Consistent appearance – Slower pulse settings aid in timing the application of filler metal to produce the consistent stacked bead appearance associated with high quality TIG

welding.

•Maintaining a steady welding rhythm.

Easy Operation:

•Flashing indicator light lets you see the pulse rate before you strike an arc.

AC Auto Balance® Controls —

Automatically sets the optimal cleaning vs. penetration level for aluminum welding!

What Is It?

When aluminum welding, the positive (+) portion of the AC welding amperage cleans the oxides from the aluminum surface. The negative (-) portion delivers more heat input, increasing penetration level.

Patented AC Auto Balance® automatically sets the ratio of cleaning action (+) versus penetration (-) based on amperage.

Easy Operation:

•Set it and forget it or override when you choose to customize the settings.

Manual balance control provides the flexibility to customize the arc to your preference.